djvu | ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615

General

Target

ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe
Size

708KB
MD5

e9f7616b292dee88d0dc0b2c237f63d8
SHA1

e9a52fcc35ac259c2147a57596b0c5657b02228d
SHA256

ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615
SHA512

d1ec516985d69795d525ae677a089971c7867960ffa32000ac8ed46797dfc47ad6caf690338b37d1fa66c119ad888059fd46b1ab029fb080f22bac9e4edea000
SSDEEP

12288:hd32Th535nTe8r875rumTYJWtldrz8DEMwPPBSA41Y+iB7/p90u8+J:hdsh5ZT+rloW9fFPgA4mLp90v

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

http://cajgtus.com/test1/get.php

Attributes

extension
.vepi
offline_id
EGfa5svnSGFJka7LZBQoqff0QtO1IpTauoDvGvt1
payload_url
http://sdfjhuz.com/dl/build2.exe

http://cajgtus.com/files/1/build3.exe
ransomnote
ATTENTION! Don't worry, you can return all your files! All your files like pictures, databases, documents and other important are encrypted with strongest encryption and unique key. The only method of recovering files is to purchase decrypt tool and unique key for you. This software will decrypt all your encrypted files. What guarantees you have? You can send one of your encrypted file from your PC and we decrypt it for free. But we can decrypt only 1 file for free. File must not contain valuable information. Do not ask assistants from youtube and recovery data sites for help in recovering your data. They can use your free decryption quota and scam you. Our contact is emails in this text document only. You can get and look video overview decrypt tool: https://wetransfer.com/downloads/33b490a613f49fa190924f199d2c079e20240512191214/caaf73 Price of private key and decrypt software is $999. Discount 50% available if you contact us first 72 hours, that's price for you is $499. Please note that you'll never restore your data without payment. Check your e-mail "Spam" or "Junk" folder if you don't get answer more than 6 hours. To get this software you need write on our e-mail: [email protected] Reserve e-mail address to contact us: [email protected] Your personal ID: 0871PsawqS

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 15 IoCs

Processes:

resource	yara_rule
behavioral2/memory/936-2-0x00000000042C0000-0x00000000043DB000-memory.dmp	family_djvu
behavioral2/memory/3948-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3948-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3948-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3948-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3948-19-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/792-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/792-27-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/792-28-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/792-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/792-32-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/792-34-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/792-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/792-36-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/792-37-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu

Djvu Ransomware
Ransomware which is a variant of the STOP family.
ransomware djvu
Modifies file permissions 1 TTPs 1 IoCs
discovery

File and Directory Permissions Modification
T1222

Processes:

icacls.exe

pid process

4364 icacls.exe

pid	process
4364	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3062789476-783164490-2318012559-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\4e0fcc6d-c4c0-454b-91d5-227c884c9a41\\ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe\" --AutoStart"	ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe

Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

2 api.2ip.ua
8 api.2ip.ua
1 api.2ip.ua

flow	ioc
2	api.2ip.ua
8	api.2ip.ua
1	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

Processes:

ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exece7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe

description	pid	process	target process
PID 936 set thread context of 3948	936	ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe	ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe
PID 2360 set thread context of 792	2360	ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe	ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exece7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe

pid	process
3948	ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe
3948	ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe
792	ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe
792	ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe

Suspicious use of WriteProcessMemory 26 IoCs

Processes:

ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exece7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exece7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe

C:\Users\Admin\AppData\Local\Temp\ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe
"C:\Users\Admin\AppData\Local\Temp\ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:936

C:\Users\Admin\AppData\Local\Temp\ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe
"C:\Users\Admin\AppData\Local\Temp\ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe"
2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3948

C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\4e0fcc6d-c4c0-454b-91d5-227c884c9a41" /deny *S-1-1-0:(OI)(CI)(DE,DC)
3⤵
- Modifies file permissions
PID:4364

C:\Users\Admin\AppData\Local\Temp\ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe
"C:\Users\Admin\AppData\Local\Temp\ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe" --Admin IsNotAutoStart IsNotTask
3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2360

C:\Users\Admin\AppData\Local\Temp\ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe
"C:\Users\Admin\AppData\Local\Temp\ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe" --Admin IsNotAutoStart IsNotTask
4⤵
- Suspicious behavior: EnumeratesProcesses
PID:792

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

File and Directory Permissions Modification

1

T1222

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
Filesize
1KB

MD5
df80f9ba75076db634761b6132e0d4e3

SHA1
07983946fb660752c7cccb2ef82d01ec4c9ecc5d

SHA256
d5ff96fd8b416de93a85783192206224cf8821c240cd8ff755f2e8270153dd99

SHA512
4ec734c5d29e9ce00b00e42b627253195e8c7a158433fedfcee428e692a6501981c33d7c8a39235f8b691f087145cdbe660b430493edbeedb12588c5cdd5a66a

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
Filesize
724B

MD5
8202a1cd02e7d69597995cabbe881a12

SHA1
8858d9d934b7aa9330ee73de6c476acf19929ff6

SHA256
58f381c3a0a0ace6321da22e40bd44a597bd98b9c9390ab9258426b5cf75a7a5

SHA512
97ba9fceab995d4bef706f8deef99e06862999734ebe6a05832c710104479c6337cbf0a76e1c1e0f91566a61334dc100d837dfd049e20da765fe49def684f9c9

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
Filesize
410B

MD5
df3193a6a9401f1a271c2c96dd9a1f00

SHA1
475755f6b10d25c9f1d7d20560eca1e196d0bb7a

SHA256
25de31a9bc08883c766afa09f6cb6e8f15d0f67545a8229f9d0bb24b29eceaaf

SHA512
717259474306e884da84b910016024ddee6868b2e08954705302f420147980b6a5e77d78263fa28979d774ae4d064216569290551067490d22001c5404b91641

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
Filesize
392B

MD5
ee75ec364e2f758d54e81d28bacf0d4b

SHA1
98fc1969f09cee4a77cbea5a22fd0ee4f32ae124

SHA256
2e4775adf46c80614a576d6a89acfaa36a47ea083f04e47bdc0d296472def22c

SHA512
e6257b72acec059bf0c439f93339fe210a696648acf9ac777ea098aa6f7b246a38ee72ad3faec34dea0d701f426acf5a82d6721fd4e7bae0471664985d8eda0b

Download Submit
C:\Users\Admin\AppData\Local\4e0fcc6d-c4c0-454b-91d5-227c884c9a41\ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe
Filesize
708KB

MD5
e9f7616b292dee88d0dc0b2c237f63d8

SHA1
e9a52fcc35ac259c2147a57596b0c5657b02228d

SHA256
ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615

SHA512
d1ec516985d69795d525ae677a089971c7867960ffa32000ac8ed46797dfc47ad6caf690338b37d1fa66c119ad888059fd46b1ab029fb080f22bac9e4edea000

Download Submit
memory/792-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/792-28-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/792-37-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/792-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/792-36-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/792-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/792-34-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/792-32-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/792-27-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/936-1-0x0000000004160000-0x00000000041F6000-memory.dmp

Filesize
600KB

Download
memory/936-2-0x00000000042C0000-0x00000000043DB000-memory.dmp

Filesize
1.1MB

Download
memory/3948-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3948-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3948-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3948-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3948-19-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download

description	pid	process	target process
PID 936 wrote to memory of 3948	936	ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe	ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe
PID 936 wrote to memory of 3948	936	ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe	ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe
PID 936 wrote to memory of 3948	936	ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe	ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe
PID 936 wrote to memory of 3948	936	ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe	ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe
PID 936 wrote to memory of 3948	936	ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe	ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe
PID 936 wrote to memory of 3948	936	ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe	ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe
PID 936 wrote to memory of 3948	936	ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe	ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe
PID 936 wrote to memory of 3948	936	ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe	ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe
PID 936 wrote to memory of 3948	936	ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe	ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe
PID 936 wrote to memory of 3948	936	ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe	ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe
PID 3948 wrote to memory of 4364	3948	ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe	icacls.exe
PID 3948 wrote to memory of 4364	3948	ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe	icacls.exe
PID 3948 wrote to memory of 4364	3948	ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe	icacls.exe
PID 3948 wrote to memory of 2360	3948	ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe	ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe
PID 3948 wrote to memory of 2360	3948	ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe	ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe
PID 3948 wrote to memory of 2360	3948	ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe	ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe
PID 2360 wrote to memory of 792	2360	ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe	ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe
PID 2360 wrote to memory of 792	2360	ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe	ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe
PID 2360 wrote to memory of 792	2360	ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe	ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe
PID 2360 wrote to memory of 792	2360	ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe	ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe
PID 2360 wrote to memory of 792	2360	ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe	ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe
PID 2360 wrote to memory of 792	2360	ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe	ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe
PID 2360 wrote to memory of 792	2360	ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe	ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe
PID 2360 wrote to memory of 792	2360	ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe	ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe
PID 2360 wrote to memory of 792	2360	ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe	ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe
PID 2360 wrote to memory of 792	2360	ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe	ce7314bab5400dd11ed0f848c046b9bed30b15d644e5a23a742828560252f615.exe

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads